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Most dangerous thing in aviation:
2010-03-18

Most dangerous thing in aviation:

"A pilot with a tool box." or "A politician with a good idea."

FAR 43.7(f) says that a Part 61 pilot may do preventative maintenance on an aircraft used in Part 91 operations provided it does not involve complex assembly operations. The pilot can approve for return to service after work under FAR 43.3(g) 29 items are listed. The complete index is in FAR Part 43, Appendix A.

The pilot can:
Replace safety belts
Remove, install and repair tires
Replenish hydraulic fluid in reservoir
Replace, clean and space spark plugs
Replace and service batteries (Not ELT)
Replace bulbs, reflectors and lenses in lights
Trouble shoot and repair landing light circuits
Replace defective safety wiring and cotter keys
Servicing landing gear shocks by adding oil or air

FAR 91.7 makes the pilot responsible for the airworthiness of an aircraft. Assumption of this responsibility carries with it responsibility to become and remain knowledgeable about the aircraft and its systems. The owner/operator is responsible for the actual financing of the maintenance. A certified mechanic must inspect any work done and make required entries in the records of the aircraft. FAR 43.3(d) requires that the mechanic personally observe the work and be available while the job is in progress. However, the FAA gets to second-guess all actions by these parties if something occurs.

The best care you can show toward your engine is to use it along with some good pilot procedures. A sitting engine will rust and corrode. Avoid descents with reduced power which may cause shock cooling; high rpm starts which fail to provide required initial lubrication; and, excessive leaning at high rpm which will burn exhaust valves.

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